| | | | | | | | | | 2020 | | | | | 2021 1 26 | | | | | | ︹2018︺ | 39 | ︹2019︺70 | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. | | | | | | | | | 2. | | | 1 | | | 2 | | | 1. | | | | | | | | 2. | | ︹2019︺70 | | 10% 30% | | | | | | | | | 3. | | 600 | 3 3.5 3.5 | 180 210 210 | 4. | | | 5. | 300 | | | | | 6. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3 -6 | | | | | | | | | | | | | | | | | |